This may be a bad idea - certainly would not my first, but I will throw it out here and see what happens. I am replacing my halyards over the next couple of years.
With a jib on a furler, often for the entire season, what would be the problem of using only slightly more than a half lengthed halyard eliminating the large bundle of excess line one must find a spot for on deck or in cockpit. When dropping the jib, one attaches an old halyard with a sheet bend and and as long as the jib is down before the knot reaches the masthead, you should be OK. With the jib up, just untie and store the old halyard where you can get to it should you need to lower the jib in an emergency.
With a jib on a furler, often for the entire season, what would be the problem of using only slightly more than a half lengthed halyard eliminating the large bundle of excess line one must find a spot for on deck or in cockpit. When dropping the jib, one attaches an old halyard with a sheet bend and and as long as the jib is down before the knot reaches the masthead, you should be OK. With the jib up, just untie and store the old halyard where you can get to it should you need to lower the jib in an emergency.